I'm loving this site for Restaurant/Caterer Marie Catrib's! Its fun and playful, and still a functional e-commerce site (another Smashing Magazine find)! I like how the nav at the top is relatively simple but has a playful touch with the arrows pointing to what you've rolled over. Another feature I like is the "hide" that allows repeat visitors to hide the the rotating messages. I like the use of handwritten typography, the mixture of different fonts is playful and fun. I think sometimes there's such a thing as using too many fonts (whether hand type or not). But I also think that if you are going to cross that line you may as well run with it and that's what this site does. Despite the assortment of fun and funky fonts, the site still looks clean and fresh. I think the clean and simple and photography helps keep it clean.
Check out Marie Catrib's! (If you live in the USA you can even order baked goods from their online store!)